GP, Explosion-Proof and FMS Lab Refrigerators and Freezers
Installation | 11
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Insert fiber rope material down into horizontal conduit
opening. Pressing down firmly, work the material into the
left hub and—most importantly—being sure the material
COMPLETELY SURROUNDS THE WIRING, from the top
to the bottom, completely blocking this end of the
horizontal conduit.
Figure 4. Fiber rope material in left hub
•
Insert fiber rope material down into horizontal conduit
opening. Pressing down firmly, work the material into the
right hub and—most importantly—being sure the
material COMPLETELY SURROUNDS THE WIRING, from
the top to the bottom, completely blocking this end of the
horizontal conduit.
Figure 5. Fiber rope material in right hub
•
Pour sealing compound down in between the two fiber
rope dams filling the remaining space. Pour slowly, being
careful not to trap air bubbles. Immediately wipe off any
spilled sealing compound.
Figure 6. Adding sealing compound
•
Screw conduit domed-cover back onto conduit opening.
Note:
Initial setup of sealing compound will occur in
approximately 30 minutes. However, the sealing compound
requires a minimum of 8 hours above 32ºF (0ºC) to develop
sufficient strength to withstand explosions.
Note:
Wires must be kept separated as shown in the figure
before addition of the sealing compound.
Selecting a Location
Choose a location for the refrigerator/freezer that will provide
a clearance of 4 in. at the top, 8 in. at the rear and 3 in. at
each side.
Appropriate electrical power must be available. Locate the
refrigerator/freezer within eight feet of the power outlet so that
no extension cord is required. Attach the refrigerator/freezer
to the facility’s electrical supply as directed by the National
Electrical Code Article 440.
Leveling the Unit
This refrigerator/freezer must be level in order to provide
adequate condensate drainage as well as proper door
alignment and operation. The refrigerator/freezer should be in
its final operating location and set so that it is firmly positioned
on the floor.
Wiring
General purpose units use 15 or 20 amp power cords. They
are rated for 115 volts, AC, 60 Hz. Do not use extension
cords, and always use a three prong grounded wall outlet.
shows standard NE service cord plugs and wall
outlets used for our refrigerators and freezers.
15A-115V
NEMA 5-15P
20A-115V
NEMA 5-20P
5-15R
5-20R
(accepts both
5-15P and 5-20P)
Figure 7. NEMA Plugs and Receptacles
Shelves
For 20ER:
Shipped inside each cabinet are four shelves, one shelf is a
sheet metal shelf & others are wired shelves that are fixed.
For 20EF:
Shipped inside each cabinet are four fixed wire shelves which
also serve as part of evaporator coils.
